86790428 has 12 divisors (see below), whose sum is σ = 152030592. Its totient is φ = 43353120.

The previous prime is 86790343. The next prime is 86790433. The reversal of 86790428 is 82409768.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (12669216).

Almost surely, 2^86790428 is an apocalyptic number.

It is an amenable number.

86790428 is a deficient number, since it is larger than the sum of its proper divisors (65240164).

86790428 is a wasteful number, since it uses less digits than its factorization.

86790428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21052 (or 21050 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 86790428 is about 9316.1380410554. The cubic root of 86790428 is about 442.7486816494.

The spelling of 86790428 in words is "eighty-six million, seven hundred ninety thousand, four hundred twenty-eight".